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Chapitre D'ouvrage Année : 2024

How Does Knee Brace Modelling Influence the Prediction of Medial and Lateral Contact Forces?

Résumé

Valgus knee orthoses are recommended to improve the quality of life of osteoarthritic patients and to postpone the arthroplasty. An innovative method, based on biplane x-rays imaging and soft tissue stiffnesses, was developed in this study to calculate the forces and moments applied by the orthosis on the skeleton during quasi-static squat postures (at 0°, 15°, 30°, 45°, 70° of knee flexion). This study demonstrated a modification of the adduction-abduction moment and the appearance of a flexion-extension moment applied by the orthosis at high knee flexion. This study also demonstrated a medial compartment unloading when the orthosis was modelled using its 3D movements relative to the bones. High variability between patients was observed. To improve the assessment of orthosis performances, this study suggests to consider the 3D forces and moments applied by the orthosis on the segments of the lower limb.
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Dates et versions

hal-04562260 , version 1 (30-04-2024)

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Sacha Guitteny, Rachid Aissaoui, Jacinte Bleau, Raphael Dumas. How Does Knee Brace Modelling Influence the Prediction of Medial and Lateral Contact Forces?. Computer Methods in Biomechanics and Biomedical Engineering II, 39, Springer Nature Switzerland, pp.3-10, 2024, Lecture Notes in Computational Vision and Biomechanics, ⟨10.1007/978-3-031-55315-8_1⟩. ⟨hal-04562260⟩
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